Neural networks are artificial intelligence systems modeled after the human brain. This program looks at several examples and applications. Included are Braincel 1.1 from Promised Land Technologies, BrainMaker Professional 2.0 from California Scientific Software, MacBrain 3.0 from Neurix, NeuroSMARTS from Cognition Technology, and ExploreNet from HNC. Also includes visits to NASA and Intel to see the work they're doing on neural networks. Originally broadcast in 1991.